A directive that adds the required validator to any controls marked with the required attribute. The directive is provided with the NG_VALIDATORS multi-provider list.
API
class RequiredValidator extends AbstractValidatorDirective {
@Input() required: string | boolean;
}
required
string | booleanTracks changes to the required attribute bound to this directive.
Description
A directive that adds the required validator to any controls marked with the required attribute. The directive is provided with the NG_VALIDATORS multi-provider list.
Exported by
Usage Notes
Adding a required validator using template-driven forms
<input name="fullName" ngModel required>